Samuel e



(No Model.) 2 Sheets-Sheet 1.

s. E. ST; 0. GHAPL'EAU.

MAGNETIO ORE SEPARATOR. r No; 256,639. 'Pa tented A pr .18,1882.'

v Invazz'for.

075%WWM N PETERS. Fholo-Lithogmphlr. Wuhington, ma

(No Model.) 7

MAGNETIC ORB SEPA'RA-TOR. Y No. 2563339 Patented-Apr. 18,1882.

S, E, S T O CHAPLEAU V 2'Sheets-Sheet 2.

UNITED STATES;

PATENT OFFICE.

SAMUEL E. s1. 0. OHAPLEAU, on OTTAWA, ONTARIO, CANADA.

MAGNETIC ORE-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 256,639, dated April18, 1882.

Application filed January 26,1882. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL E. Sr. 0. CHAP- LEAU, of Ottawa, in thecounty of (Jarleton, Province of Ontario, Canada, have invented certainImprovementsin Magnetic Ore-Separators, of which the following is aspecifica .other exceedingly narrow connections of magnetic material,whereby I am enabled by the use of agiven magnet and current to producea greatly-increased surface to which the magnetic ore will adhere.

I am aware that numerous machines have been constructed whereinelectromagnets and permanent magnets were employed in variousarrangements and combinations to effect the separation of ores, and thatin many cases the electromagnets have been provided-with flattened andextended ends or poles for the purpose of providing an increased surfaceto attract the ore.

I am also aware that in an ore-separator a cylinder has been providedwith longitudinal iron bars, each having the poles of a number ofmagnets connected thereto, the bars becoming in such case the poles ofthe magnets.

In practical operations with the machines hitherto constructed it isfound that the ore adheres mainly to the edge and center of thesupplementatsurfaces employed therewith may be varied asdesired,provided their mode of action remains unchanged, and they may bemounted upon or used in connection with any suitable appliances forbringing them in proper relation to the oreto act thereon.

The accompanying drawings represent a machine of the preferredconstruction and also certain modifications in the form of thesupplemental surfaces.

Referring to the drawings, Figure l represents a side elevation, partlyin section, of a rotary machine having my improvements embodied therein;Fig. 2 is an end elevation of the machine. Fig.3 represents across-section through one side of the cylinder on the lines: as ofFig. 1. Fig. 4 represents a face view of one of the'magnetic poles andthe supplemental surfaces as applied to the surface of the cylinder.Figs. 5 and 6 are face views illustrating the supplemental attractivesurfaces in modified forms. Fig. 7 is a perspective view, showing amodified construction of the machine.

Referring to Figs. 1, 2, 3, and 4, A represents a horizontal rotatingcylinder, preferably constructed of wood or other non-magneticmaterial-and mounted in suitable supports. This cylinder is providedwith any suitable number of electro-magnets B, distributed uniformlyaround its interior, each with one pole, a, extending through thesurface. of the cylinder, as represented in Fig. 1.

For convenience of illustration 1 have represented a machine in whichthe surface of the cylinder is divided longitudinally into four equalsections, each having two magnets therein side by side. Around the poleof each magnet upon the surface of the cylinder 1 secure a series ofannular rings, G, made of iron or other material capable of beingmagnetized. The rings 0 are insulated from each other and from themagnet-01', in other words, so arranged that there is no electrical ormagnetic connection between them -but are arranged at such distancesfrom the magnet and from each other that when the magnet is polarizedthe various rings will be magnetized by the inductive action familiar toall persons skilled in electricity.

In practice it is found that when the supplemental surfaces are thusmagnetized and brought into contact with the ore, the magnetic ore willadhere to the surfaces and to the edges of the rings, as well as to themagnet, the adherence occurring mainly at the edges of the rings and atthe magnet. The cylinder is mounted, as shown in Fig. 2, immediatelyover two hoppers or receptacles, D and E, one under each side. A hopper,F, is arranged above the cylinder to deliver the sand thereto, thishopper being of any suitable construction and being provided, ifdesired, with devices for feeding or regulating the flow of ore to thecylinder.

The coil of each electro-magnet is constantly connected at-one end ofthe cylinder, through a conducting-finger, L, with a wire or conductor,M, extending to a battery or other electric generator. The oppositepoles of the magnetic coils are connected through the opposite end ofthe cylinder with conductors G, which travel around and operate upon astationary circuitbreaker or commutator, H, also in connection With thebattery or generator. The fingers G travel around the circuit-breaker Hand serve to throw each magnet into and out of circuit alternately, thevarious magnets being brought into action successively in pairs, whichaction is secured by connecting the coils of the two companion magnetsand passing the current through both at once.

The circuit-breakeris adj ustcd in such mannerthat each maguetis throwninto circuit and magnetized during the time that it is passing beneaththe hopper, and maintained in circuit until it has descended and beencarried past the receptacle E and brought over the receptacle D, theresult of this arrangement being that on turning the cylinder in thedirection indicated by the arrow in Fig. 3, and delivering the ore fromthe hopper upon the upper surface of the cylinder, the magnetic ores areattracted and held by the magnets B and rings 0, and carried downwardpast the receptacle E and discharged by the depolarization of themagnets and rings into the receptacle D, the non-magnetic substancesfalling directly and without interruption into the receptacle E.

The supplemental surfaces are rendered somewhat magnetic by the directinduction sired, devices of this character being well known in variousforms to persons skilled in the art.

Figs. 4 and 5 represent the supplemental surfaces 0 in angular insteadof annular form.

Fig. 6 represents a machine in which the magnet and supplementalattractive surfaces are arranged upon reciprocatinginstead of rotatingsurfaces.

F represents a feed-hopper; G, an endless belt arranged beneath thehopper in such manner as to receive the ore therefrom and carry itforward upon its surface.

J J represent two insulated plates or frames arranged to reciprocatehorizontally over the upper surface of the carrierapron, in closeproximity to the ore thereon, the reciprocating motion carrying theplates J and J over and away from the belt alternately. Each of theplates or carriers J J is provided with electro-magnets and supplementalsurfaces arranged in connection therewith in the same manner asrepresented in Figs. 1, 2, &c., the magnetic poles and surfaces beingarranged on the under side of the plates adjacent to the carrying-belt.The magnets of each plate are placed in circuit and magnetized whileabove the belt, but are demagnetized after being carried away from thebelt. With the parts in the position represented in Fig. 6 the ore iscarried by the belt beneath the plate J, and the magnetic portionattracted and held by the electro-m a gnets and supplemental surfaces onthe under side of the plate. As soon as this action has taken place thetwo plates are shifted laterally, bringing plate J over the belt andcarrying plate J to one side. The magnets of plate J being thendepolarized, the iron ore is discharged therefrom into a receptaclelocated beneath the same, while at the sametime the magnets of plate Jwill efi'ecta separation of the ore brought thereunderby the belt. Thebelt being moved continuously or intermittently will carry thenon-magnetic materials over its ends and discharge them, at the sametime bringing fresh or unseparated ore forward beneath the plates.

Having thus described my invention, what I claim is- 1. In a magneticore-separator, the combination of an electro magnet and a series ofsupplemental attractive surfaces separated from the magnetic pole andarranged in relation thereto, substantially as described and shown.

2. In an ore-separator, the combination of a magnetand aseries ofsupplemental surfaces of magnetic material insulated and disconnectedfrom the magnet, but arranged in relation thereto, substantially asshown. 3. In an ore-separator, the combination of a hopper, a magnet,and series of magnetic rings or plates cncirclingthe pole of the magnet,as and for the purpose described.

4. The combination, substantially as described, of the revolvingcylinder provided two receptacles, and means, substantially as with theseries of electro magnets and supdescribed, for magnetizing anddemagnetizing 1o plemental surfaces, as described, and means themagnets.

whereby the magnets are rendered active and t 5 inactive alternately.SAMUEL E. 81. OhGE CHAPLEAU,

5. The combination of the revolving cylin- Witnesses: der, theelectro-magnets and snpplementa-lsur- W. O. DUVALL, faces mountedthereon, the feed-hopper, the NEWTON WYOKO-FF.

